wrapper scripts: write diagnostics to stderr, not to stdout

* zforce.in: In case of usage error, output short error diagnostics to
stderr instead of printing help text to stdout.
* zmore.in: Likewise.
* znew.in: Likewise.

1 files changed, 1 insertions, 1 deletions

diff --git a/zmore.in b/zmore.in
index 64b144d..0f048c9 100644
--- a/zmore.in
+++ b/zmore.in
@@ -57,7 +57,7 @@ fi
 
 if test $# = 0; then
     if test -t 0; then
-	echo "$usage"
+	echo >&2 "$0: invalid number of operands; try \`$0 --help' for help"
     else
 	gzip -cdfq | eval ${PAGER-more}
     fi